tedster - 6:25 pm on Dec 1, 2011 (gmt 0)
I've recently noticed that if I type "google.com" into the browser's location bar I automatically default to https - and for a few days last week even when I specifically typed the "http" protocol, I was redirected. This happened in both Opera and Firefox.
Today, a specific request for the http protocol is not redirected, but "google.com" still is. Lots more "Not provided" keywords would be the natural result of that, depending on how widespread this behavior is.